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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX

Radial High Pressure Blowers, explosion protected HRD-FU-ATEX

Product catalog summary

Explosion Protection
The ATEX-HRD-FU series of high-pressure radial blowers are designed for explosion protection in compliance with directive 94/9 EC. Operators must assess explosion risk areas and categorize them into zones, implementing necessary protection measures. Devices are classified into categories suitable for specific zones, with Elektror blowers available for Zones 1, 2, and 22.

Zones and Categories
Defined by EN 1127-1, zones are categorized based on the presence and likelihood of explosive atmospheres. Zones 0, 1, and 2 are for gases, while Zones 20, 21, and 22 are for dusts.

Temperature Classes
Devices are categorized by the highest permissible surface temperatures, ranging from T1 (450°C) to T6 (85°C). Elektror supplies equipment in temperature class T3 or higher as standard.

Ignition Protection
Devices use flameproof enclosures to prevent ignition of explosive atmospheres. The ignition protection type 'de' is used for frequency converter-compatible drives.

Applications
ATEX high-pressure blowers are suitable for various applications, including conveying air at high system resistances, exhausting gases and vapors, cooling machinery, ventilation, generating low pressure, and biogas applications.

Product Features
Elektror ATEX blowers offer high performance, compact design, long service life, high efficiency, favorable noise characteristics, robust aluminum casings, and frequency convertible motors.

Technical Specifications
Elektror radial blowers, particularly the ATEX-HRD FU series, are designed for use in explosive environments. They can operate with both suction and pressure side connections under certain conditions. Sealed versions are available upon request, allowing a maximum zone difference of one between the interior and exterior.

Ignition and Combustion Temperatures
Operators must specify ignition or glowing combustion temperatures in explosion protection documents. These temperatures should be determined according to IEC standards and communicated to Elektror.

Design and Construction
Elektror ATEX high-pressure blowers feature closed impellers made of aluminum, driven by motors tailored for blower operation. The robust design ensures long service life and low operating costs, complying with EN 60079-1 standards.

Performance and Operation
Blowers are designed to convey air and gases, with performance dependent on design and size. The ability to generate pressure decreases with increased flow volume. Performance is depicted through pressure difference and volumetric flow rate curves.

Noise Generation
Noise is generated by flow and turbulence within the blower. It is influenced by blower type, size, operating point, and speed. Noise levels are measured in dB(A), considering frequency perception.

Performance Curves
Characteristic curves for total and static pressure as a function of volumetric flow rate are measured under specific conditions. These measurements are crucial for blower selection.

Blower Selection
Determining usable pressure difference involves assessing total pressure increase and static pressure difference. Pressure recovery can be achieved through gradual duct expansion.

Density Influence
Total pressure, dynamic pressure, static pressure, and power requirements change with the density of the conveyed medium. Density changes due to temperature must be calculated.

Versions
ATEX standard series are suitable for stable operating conditions. Special versions can be customized for specific applications, including customer-specific solutions.

Specifications
The operating temperature range for the motors is between -20°C and +40°C, and they comply with thermal class F according to EN 60034-1. The HRD ATEX blowers can handle conveyed media temperatures within the same range.

Designs
ATEX standard designs are recommended for stable operating conditions. Special blowers can be customized for specific applications. The document emphasizes the importance of using appropriate sealing options and maintaining the correct rotational speeds to ensure optimal performance.

Technical Information
ATEX high-pressure blowers are equipped with PTFE radial shaft seals. The document provides formulas for calculating changes in volumetric flow rate, total pressure increase, and power consumption when altering blower speeds. It also outlines the importance of using frequency converters for speed adjustments and adhering to specific electrical connection standards to ensure safety and compliance with EMC regulations.

Operation and Maintenance
The blowers are fitted with closed deep groove ball bearings that do not require lubrication. Regular checks and cleaning are necessary to maintain operational safety and performance. Only original spare parts should be used, and any component replacements should be conducted by trained personnel. The document also highlights the importance of protecting blowers from weather influences and ensuring they are installed in a stable, horizontal position.

Ordering Data
Key information required for ordering includes blower type, flow volume, pressure requirements, voltage, frequency, ambient and conveyed medium temperature, and specific explosion protection details. The document advises using the ATEX project-related information form for inquiries.

Remarks
All dimensions, technical data, and descriptions are approximate and subject to change.

Conversion Table
The document includes a conversion table for various units of measurement, such as pressure, volumetric flow rate, electric power, length, and weight, providing conversion factors between European and US units.

Housing Positions
The document describes the standard housing positions for blowers, including clockwise and counter-clockwise rotations, and provides guidance on terminal box positions and cable entry options.

Terminal Box and Cable Inlet Definitions
The document specifies the positions for terminal boxes and cable inlets on blowers. Terminal box positions are defined as 270° (top, standard), 180° (left), 0° (right), and 90° (bottom, on request). Cable inlets are defined as A (right, standard), C (left), and D (rear). Note that some blower types have limited options for these configurations, especially those with motor support brackets or feet. For further details, contact the product management department.

Technical Information and Specifications
The document provides technical specifications for various blower models, including volumetric flow rate, total pressure difference, voltage, frequency, current consumption, number of revolutions, motor rating, and weight. It also includes characteristic curves for different models, indicating performance at various frequencies. The blowers are designed with explosion protection (EEx de) and temperature class T4/135°C. Dimensions and performance data are subject to change.

Model Specific Data
Detailed specifications are provided for several models, such as HRD 1T FU, HRD 14T FU, HRD 16T FU, HRD 2T FU, HRD 60 FU, and HRD 65 FU. Each model's data includes dimensions, performance metrics, and the requirement for a variable speed drive. The document also includes diagrams and tables illustrating the dimensions and performance characteristics of each model.

Catalog excerpts

Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-1

airsystems gmbh Hochdruck-ventilatoren High pressure blowers Explosions-geschutzte Ausfuhrung Explosion protected design

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-2

INHALTSVERZEICHNIS TABLE OF CONTENTS Elektror-ATEX-Hochdruckventilatoren bieten: • Sinnvolle Leistungsabstufung • Einbaufertige Ausfuhrung mit Drehstrommotor • Hohes Leistungsvermogen bei kompakter Bauweise • Lange Nutzungsdauer bei niedrigeren Betriebskosten • Gute Wirkungsgrade • Gunstiges Gerauschverhalten • Stabile Gehauseausfuhrung aus Aluminiumguss • Frequenzregelbare Ausfuhrung • ZweckmaBiges Zubehor Elektror-ATEX-high pressure blowers offer: • Reasonable performance graduation • Ready-to-install design with three phase a.c. motors • High performance at compact design • Long service life...

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-3

ATEX-HOCHDRUCKVENTILATOREN ATEX HIGH PRESSURE BLOWERS Die Einsatzgebiete unserer ATEXHochdruckventilatoren sind vielfältig: Our high pressure ATEX blowers are suitable for a wide range of applications: • Förderung mittlerer Luftmengen bei größeren Anlagenwiderständen • Absaugung von Gasen und Dämpfen • Kühlung von Apparaten und Maschinenteilen • Be- und Entlüftung von Anlagen mit größeren Widerständen • Erzeugung von Unterdruck • Luftzuführung bei Trocknungsanlagen • Biogas-Anwendungen • Filteranlagen • Lebensmitteltechnologie • Conveying medium air volumes at high system resistances • Exhaustion...

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-4

Btechnische hinweise TECHNICAL INFORMATION Die EN 1127-1 definiert nach AusmaB und Auspragung verschiedene explosionsgefahrdete Zonen, in denen explosionsfahige Atmospharen in Gefahr drohender Menge vorliegen oder auftreten konnen. Eine explosionsfahige Atmosphare ist ein Gemisch aus Luft und brenn-baren Gasen, Dampfen, Nebeln oder Stauben. Wegen unterschiedlicher Zundgefahren und erforderli-cher SchutzmaBnahmen sind unterschiedliche Zonen fur Gase (auch fur Dampfe, Nebel) und fur Staube definiert. Die folgende Tabelle zeigt die verschiedenen Zonen mit den entsprechenden Gerate-Kategorien nach...

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-5

Fur die Zonen 0, 20 und 21 sind keine Elektror-Gerate verfugbar. Diese Angaben beziehen sich auf Betriebs-mittel der Gerategruppe II, d.h. Gerate, die nicht fur den Schlagwetter- oder Untertagebetrieb geeignet sind. In Verbindung mit Motoren der Zundschutzart EEx de liefert Elektror ATEX-Ventilatoren fur die Unterzundgruppe IIB, diese schlieBt Gruppe IIA mit ein. Wir empfehlen Ihnen, uns Ihre Anfragen an das Elekt-ror-Produkt und den von uns umzusetzenden Explosions-schutz in unserer ATEX-Selbstauskunft fur Kunden zu benennen. Sie konnen das Formular unter www.elektror.de herunterladen. No Elektror...

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-6

Etechnische hinweise TECHNICAL INFORMATION Glimmtemperaturen Der Betreiber eines Gerates oder Betriebsmittels ist dazu verpflichtet, Zund- oder Glimmtemperaturen in seinem Explosionsschutzdokument festzuschreiben und diese Elektror bei Bestellung zu benennen. Die Verfahren zur Ermittlung der Zundtemperaturen von Staub-Luftgemischen, sowie den Glimmtemperaturen von ruhenden Staubschichten beschreiben die IEC 61241-2-1 und die IEC 60079-4. Diese Verfahren sind vom Betreiber/Kunden anzuwenden und Elektror als Hersteller im Voraus mitzuteilen. Zundschutzart de: Druckfeste Kapselung (s. EN 60079-1) Teile...

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-7

TECHNISCHE HINWEISE TECHNICAL INFORMATION Elektror-Hochdruckventilatoren der Baureihe HRD-FU-ATEX Elektror ATEX high pressure blowers are radial blowers sind Radialventilatoren mit geschlossenen Laufrädern aus with closed impellers made of aluminium steel sheet metal. Aluminiumblech. Sie werden von besonders auf die Ven- The are directly driven by well dimensioned motors which tilatorbelange abgestimmten, gut dimensionierten Kurz- have been especially adapted to the operation of the schlussläufer-Motoren direkt angetrieben. Die formschönen, blowers. The well-shaped housings are made of cast den...

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-8

Etechnische hinweise TECHNICAL INFORMATION Die entstehenden Kennlinien werden als Wider-standsparabeln oder Anlagenkennlinien bezeichnet. Der Arbeitspunkt des Ventilators wird durch den Schnittpunkt der beiden Kennlinien bestimmt. Soweit der Anlagenwider-stand rechnerisch nicht ohne weiteres erfasst werden kann, bieten sich Versuche oder der Ruckgriff auf Erfahrungswerte an. Mit steigendem Anlagenwiderstand verringert sich die Fordermenge der Ventilatoren und die Leistungsaufnahme sinkt. Der maximale Volumenstrom eines Ventilators ergibt sich aus dem Schnittpunkt der Totaldruck-Kennlinie Apt mit...

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-9

TECHNISCHE HINWEISE TECHNICAL INFORMATION Die abgestrahlten Geräusche sind nicht über den gesamten The noise emission is not constant across the entire per- Leistungsbereich konstant. Ventilatorgehäuse und -laufrad formance range. Blower housing and impeller are desi- sind den strömungstechnischen Erfordernissen entspre- gned to offer the required ﬂow properties. Therefore, the chend konstruiert, so dass die Geräuschentwicklung im noise emission largely depends on the required ﬂow volu- wesentlichen von den Anforderungen an Fördermenge me and pressure difference as well as the corresponding und...

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-10

TECHNISCHE HINWEISE TECHNICAL INFORMATION Blower selection Nutzbare Druckdifferenz Usable pressure difference Hat man rechnerisch oder durch Versuche die benötigte Once the necessary pressure difference has been deter- Druckdifferenz für die gewünschte Fördermenge ermittelt, mined by computation or experiments, the amount of the so ist zu prüfen, wieviel von der Totaldruckerhöhung des total pressure increase of the blower must be checked Ventilators als statische Druckdifferenz genutzt werden which may be used as static pressure difference. If the duct kann. Hat der druckseitig angeschlossene...

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Radial High Pressure Blowers, explosion protected HRD-FU-ATEX-11

TECHNISCHE HINWEISE TECHNICAL INFORMATION Totaldruckerhöhung, dynamischer Druck, statischer Druck Total pressure increase, dynamic pressure, static pressure und Leistungsbedarf des Ventilators ändern sich proportio- and power requirement of the blower change propor- nal mit der Fördermediendichte und sind bei der Ventilator- tionally to the pressure of the conveyed medium and have auswahl zu berücksichtigen (Bild 3). Dichteänderung durch to be taken into consideration on selecting the blower Temperatureinﬂüsse errechnen sich wie folgt: (Fig. 3). Density changes through temperature inﬂuences J...

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